NEUMAN & ESSER - Features - Reciprocating Compressors
Recip Compressors Custom Solutions For Best Performance
Diaphragm Compressors Leading High Pressure Technology
NEA Compressors NEA Reciprocating Compressor Features
HOFER Compressors HOFER Diaphragm Compressor Features
Long Experience in Engineering, Design and Packaging
The company Andreas Hofer Hochdrucktechnik GmbH is one of the world's leading specialists for high pressure technology. For more than 90 years, the brand has been standing for top quality, constant innovation and high safety standards.
NEUMAN & ESSER has a solid foundation of over 180 years of manufacturing experience; including engineering, design and packaging of reciprocating compressors since the 1920th. NEA’s experienced and flexible in-house engineering team designs each reciprocating compressor according to API 618 or ISO 13631 (API 11P) standards to ensure long-lasting performance and reliability.
Since 1995 NEUMAN & ESSER GROUP (NEA) and Andreas Hofer have worked successfully together as part of a sales cooperation. Both companies combine the technical leadership in their respective markets and the manufacture of specific equipment for customers in niche markets.
2015 the NEUMAN & ESSER GROUP acquired Andreas Hofer together with all rights and obligations. For NEA the purchase of the well-known brand, their products and their know-how of diaphragm compressors, high pressure piston compressors and fittings, provide an addition and an extension to its own portfolio that is 'Made in Germany'.
Customers Benefit
Customers benefit on the one hand from NEA’s expertise of high flow as well as HOFER's know-how of high pressures on the other hand.
- HOFER products are being refined using NEA central engineering and R&D
- New products have been created combining components from both partners
- NEA Sales & Applications Centers worldwide will package HOFER compressors to easily comply to local requirements
- HOFER customers have access to the worldwide NEAC Compressor Service network
Features of NEA Compressors
Compressor Design Features |
| API 618 and ISO 13631 (formally API 11P) standards |
| Advanced material selection and workmanship |
| Cylinders: Water-cooled or non-cooled Large bore experience Liners |
| Customized valve selection from numerous valve OEMs |
| Robust compressor frame designs built for durability |
| Advanced capacity control system options |
| Balanced compressor throws for low vibration |
| Varying throw options per compressor model |
| Horizontal, Vertical and V-type compressor model configuration options |
Technical Analysis |
| Advanced 3D modeling software used for compressor model selection and skid design |
| Complex drive-train design and analysis with propriety torsional software |
| Acoustics analysis to minimize vibrations |
| Four-hour compressor mechanical test run |
Compatible Drives |
| Electric motor drive |
| Advanced variable-speeds |
Features of HOFER Diaphragm Compressors
Compressor Design Features |
| Hermetically sealed towards the outside |
| Contamination-free compression of different gases as well as for gas mixtures |
| Suitable for toxic and hazardous gases |
| High purity gases can be proceed without any contamination or losses |
| Oil-free and abrasion-free compression |
Constructional Features |
| 1- to 4-stage design with one crank drive |
| Each diaphragm head is equipped with metal triple diaphragms and diaphragm failure indicator |
| Foundation-free installation |
| In accordance with the harmonized European safety regulations for machinery, the ATEX regulations and the pressure equipment directive (PED) |
Advantages of HOFER Diaphragm Compressors |
| Advanced cooling: The water cooling does not only enclose the gas coolers and cylinders, but also the diaphragm head on the hydraulic side. There are no additional cooling water bores in the diaphragm cover. Thus, the high-loaded diaphragm head is not weakened. |
| Valves: HOFER also manufactures valves like shutoff-, non return- safety valves and connecting elements. Thus, HOFER completes the valve panels with own products. |
Frames of NEUMAN & ESSER Compressions Systems
| Frame |
|---|
| Precise alignment tolerances minimizes joint fatigue and bolt failure |
| Hydraulic bolting for high stress loads |
Cylinders |
| Custom-made |
| Cylinder manifolds with large valves |
| Indicator ports |
| Efficient gas passage design |
Frame Lubrication System |
| Hand assembled stainless steel internal piping |
| Shaft-driven main oil pump |
| Full-flow oil filter |
Cylinder Lubrication System |
| Standalone mini-lubrication unit: Separate reservoir to provide fresh and clean oil Independently driven pump |
Frames of NEUMAN & ESSER Compressions Systems
Frame |
| Various crankshaft strokes |
| Gray cast iron or nodular cast iron: In total three grades available |
Cylinders |
| Water-cooled or non-cooled |
| Various capacity control systems: VVCP’s and FVCP’s Suction valve unloading Finger / Port / Plug types |
| Multiple valve OEM’s to enable flexibility |
Frame Lubrication System |
| API 614 design techniques |
| Full-flow, full pressure auxiliary oil pumps |
Coupling |
| Steel disc |
| Flexible elastomeric |
| Rigid flange |
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